# DS18B20Z+T&R

**Analog Devices Inc Maxim Integrated** · Temperature Sensors · SOIC-8

DS18B20Z+T&R from Analog Devices Inc Maxim Integrated, in a SOIC-8. Pinout and pin descriptions extracted from the manufacturer datasheet by ds2sf; symbol, footprint, and 3D from KiCad-official CAD.

## Pinout

| Pin | Name | Type | Function |
|---|---|---|---|
| 1 | N.C. | unconnected | No connection. Leave floating or tie as convenient; not internally bonded. |
| 2 | N.C. | unconnected | No connection. Leave floating or tie as convenient; not internally bonded. |
| 3 | VDD | power_in | Optional supply voltage input, +3.0V to +5.5V for local-power operation. In parasite-power mode, VDD MUST be tied to GND; power is then derived from the DQ line via an external ~4.7kΩ pullup. |
| 4 | DQ | bidirectional | 1-Wire data input/output. Open-drain pin requiring an external ~4.7kΩ pullup to VPU (3.0-5.5V). Also provides power to the device in parasite-power mode. Standby current typ 750nA; active current 1-1.5mA at VDD=5V. |
| 5 | GND | power_in | Ground reference (0V). |
| 6 | N.C. | unconnected | No connection. Leave floating or tie as convenient; not internally bonded. |
| 7 | N.C. | unconnected | No connection. Leave floating or tie as convenient; not internally bonded. |
| 8 | N.C. | unconnected | No connection. Leave floating or tie as convenient; not internally bonded. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Analog Devices Inc Maxim Integrated |
| Package | SOIC-8 |
| Category | Sensors |
| Pins | 8 |

## Ordering variants

Same part, different packaging or reel option.

- `DS18B20Z+T&R`
- `DS18B20U`
- `DS18B20+`

## CAD (KiCad official)

- Symbol: `DS18B20Z+T&R`
- Footprint: `Package_SO:SOIC-8_3.9x4.9mm_P1.27mm`
- 3D model: SOIC-8 (KiCad packages3D, STEP)
- 3D model files: `ds18b20z-t-r-etched.step` / `ds18b20z-t-r-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `ds18b20z-t-r.step` / `ds18b20z-t-r.glb` are the bare package body.

## Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

- **Datasheet:** [Analog Devices Inc Maxim Integrated datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8586187298262429696) (20 pp, sha256 `675a10b602ac6ff8`, retrieved 2026-08-17, tier: lcsc)
- **Extractor:** `ds2sf` (Claude). Every pin and dimension is cited to a datasheet page; it refuses to fabricate.
- **CAD:** KiCad official libraries (CC-BY-SA 4.0).

[Datasheet PDF](docs/ds18b20z-t-r-datasheet.pdf)